Reply.io vs Thread Otter

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Reply.io compared with Thread Otter
Detail	Reply.io	Thread Otter
What it does	AI-powered sales outreach and cold email platform for automating multichannel campaigns and booking more meetings	Not given
Stage	Established	Not given
Founded	2014	Not given
Based in	US	Not given
Pricing model	Freemium	Free trial
Pricing	Free plan available; email automation plans start at $49/month per user (1,000 active contacts) for individual users. Multichannel plans start at $89/month per user billed annually. Jason AI SDR agent starts at $500/month. Agencies can use Agency Core starting at $210/month or Agency AI SDR at $500/	$99 per month for one teammate and one project with full autopilot across all four channels. Add teammates at $99/month each. Add projects at $39/month each. Annual billing offers 2 months free.
Key features	Email automation with unlimited mailboxes and email warm-up Multichannel conditional sequences across email, LinkedIn, SMS, WhatsApp, and calls AI-generated personalized email sequences Real-time B2B database with 1+ billion contacts and intent signals Automated meeting scheduling from sequences Unified inbox for managing all conversations LinkedIn automation for connection requests and messaging Jason AI SDR agent for autonomous outreach API and MCP integration for custom workflows	Monitors Reddit, X, LinkedIn, and Bluesky for buyer intent signals Direct message automation for warm leads Native post creation per platform without cross-posting Per-account pacing and daily caps to prevent bans Reply-to-customer attribution and receipt tracking Google Search Console integration for long-term reach measurement Approve-first mode for review before sending Do-not-say rules and sameness guard to prevent generic replies Chrome extension for sending from your own logged-in accounts
What makes it different	Jason AI SDR agent automates entire sales cycle from prospect research to follow-up Email warm-up and deliverability management included with every mailbox 98% email deliverability rate with anti-spam and multi-channel support Works with AI tools like Claude, Cursor, and other MCP clients via terminal Access to 1+ billion B2B contacts with real-time hiring and technographic intent signals	Full attribution from thread reply to customer signup, not just vanity metrics Genuine pacing and account safety designed to prevent bans Replies powered by your authentic voice, not a preset or generic AI Costs $99/month versus $10k+ for a growth hire
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	78 no change since last check	29 no change since last check
Trust Flow (Majestic)	31	2
Citation Flow (Majestic)	55	28
Referring domains (Majestic)	8077	50

4 details filled in for both companies.

More alternatives to Reply.io More alternatives to Thread Otter